Light level monitoring apparatus and ballast box door



FIG. 1 is a perspective view of design according to the invention from afirst perspective.

FIG. 2 is a perspective view of the design of FIG. 1 from a differentperspective.

FIG. 3 is a front elevation view of the design of FIG. 1.

FIG. 4 is a back elevation view of the design of FIG. 1.

FIG. 5 is a left side elevation view.

FIG. 6 is a right side elevation view.

FIG. 7 is a top plan view; and,

FIG. 8 is a bottom plan view.

The broken lines in FIGS. 1 and 2 show an example of a conventionalenvironment for the claimed design and does not form a part of theclaimed design.

We claim the ornamental design for a light level monitoring apparatusand ballast box door or similar article, substantially as shown.